Very correct box , pre-BP, and a rare item in the condition shown. great find! The number written in crayon on the bottom of these boxes is usually the serial number of the gun, as the end lable had no place for that info., however that seems a high serial number for that old of a box. Could be that the box came to light from old storage at the time gun # 205487 (circa mid 1950s) arrived for packing for the vault. Ed